@misc{indiciaec81e7147e1f5,
  title = {Stasis and extinction of Silurian (Llandovery-Wenlock) trilobite associations related to oceanic cyclicity},
  author = {Donald G. Mikulic and Joanne Kluessendorf},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70021741},
  note = {Source identifier: 70021741}
}